/*
 * Copyright [2020-2030] [https://www.stylefeng.cn]
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * Guns采用APACHE LICENSE 2.0开源协议，您在使用过程中，需要注意以下几点：
 *
 * 1.请不要删除和修改根目录下的LICENSE文件。
 * 2.请不要删除和修改Guns源码头部的版权声明。
 * 3.请保留源码和相关描述文件的项目出处，作者声明等。
 * 4.分发源码时候，请注明软件出处 https://gitee.com/stylefeng/guns
 * 5.在修改包名，模块名称，项目代码等时，请注明软件出处 https://gitee.com/stylefeng/guns
 * 6.若您的项目无法满足以上几点，可申请商业授权
 */
package cn.stylefeng.roses.kernel.message.websocket.server;

import cn.stylefeng.roses.kernel.message.websocket.manager.WebSocketManager;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Component;

import javax.websocket.*;
import javax.websocket.server.PathParam;
import javax.websocket.server.ServerEndpoint;

/**
 * websocket服务端
 *
 * @author liuhanqing
 * @date 2021/1/24 22:26
 */
@Slf4j
@Component
@ServerEndpoint("/message/websocket/{userId}")
public class WebSocketEndpoint {

    /**
     * 连接建立成功后调用
     *
     * @param userId  用户id
     * @param session 用户websocketSession
     * @author liuhanqing
     * @date 2021/1/24 22:27
     */
    @OnOpen
    public void onOpen(@PathParam(value = "userId") Long userId, Session session) {

        // 添加到链接管理
        WebSocketManager.add(userId, session);

        // 返回消息
        session.getAsyncRemote().sendText("WebSocket连接成功");
    }

    /**
     * 连接关闭时调用
     *
     * @author liuhanqing
     * @date 2021/1/24 22:29
     */
    @OnClose
    public void onClose(@PathParam(value = "userId") Long userId, Session session) {
        // 从map中删除
        WebSocketManager.removeSession(userId, session);
    }

    /**
     * 收到客户端消息后调用
     *
     * @param message 客户端发送过来的消息
     * @param session 用户websocketSession
     * @author liuhanqing
     * @date 2021/1/24 22:29
     */
    @OnMessage
    public void onMessage(String message, Session session) {
        log.debug("来自客户端的消息:" + message);
    }

    /**
     * 发生错误时回调
     *
     * @param session 用户信息
     * @param error   错误
     * @author liuhanqing
     * @date 2021/1/24 22:29
     */
    @OnError
    public void onError(Session session, Throwable error) {
        log.error("WebSocket发生错误");
        if (log.isDebugEnabled()) {
            error.printStackTrace();
        }
    }

}
